Infineon Technologies S29GL128P11FAI020

Overview

S29GL128P11FAI020 from Cypress Semiconductor is a 128 Mbit (16 MB) 3.0 V-only page-mode NOR Flash memory fabricated on 90 nm MirrorBit process technology, featuring 128 uniform 64 Kword (128 Kbyte) sectors, 25 ns page access time, and 90 ns random access time under regulated VCC. It supports VersatileI/O™ with VIO range 1.65–VCC, 32-word write buffer for accelerated multi-word programming, and Secured Silicon Sector with factory- or customer-programmable 8-word electronic serial number - deployed in industrial embedded controllers requiring nonvolatile code storage and field firmware updates.

For engineers reviewing the S29GL128P11FAI020 datasheet, S29GL128P11FAI020 pinout, S29GL128P11FAI020 application, or S29GL128P11FAI020 equivalent, key selection criteria include sector architecture uniformity, VIO voltage flexibility, WP#/ACC dual-function pin behavior, and CFI-compliant interface compatibility for bootloader and firmware partitioning.

Technical Context

This device implements a synchronous/asynchronous hybrid command-set architecture with embedded erase and program algorithms, enabling suspend/resume during active operations. Its VersatileI/O™ control decouples I/O voltage (VIO) from core supply (VCC), allowing interoperability with 1.8 V, 2.5 V, or 3.3 V logic domains while maintaining full 2.7–3.6 V VCC operation.

The 64-ball Fortified BGA (LAA064) package integrates hardware reset (RESET#), ready/busy status (RY/BY#), and dual-role WP#/ACC pin - supporting both sector write protection and VHH-accelerated programming. Sector erase endurance is rated at 100,000 cycles with 20-year data retention, validated under industrial temperature range (–40°C to +85°C).

Key Specifications

Pinout & Package

Package: 64-ball Fortified Ball Grid Array (LAA064), 11 mm × 13 mm, 1.0 mm pitch, Pb-free (RoHS compliant), industrial temperature grade (–40°C to +85°C).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar NOR Flash memory applications.

Compared with MX29GL128FPTI-90G and S29GL128S11TFI020, the S29GL128P11FAI020 uniquely delivers VIO flexibility for heterogeneous logic domains and integrated secure identity - making it optimal for next-generation industrial and automotive platforms demanding both interoperability and traceability.

Availability

S29GL128P11FAI020 is available at Aetrix Electronics and suitable for industrial PLCs, automotive ECUs, and medical infusion pumps requiring stable component supply, long-life firmware storage, and secure field-upgrade capability.

Supply support for S29GL128P11FAI020 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Cypress Semiconductor (now part of Infineon Technologies) is a fabless semiconductor company specializing in high-reliability memory, microcontrollers, and connectivity solutions for industrial, automotive, and consumer markets.

The S29GL-P series was designed specifically for embedded systems requiring robust, code-executable NOR Flash with advanced protection, uniform sectoring, and mixed-voltage I/O - targeting applications where firmware integrity and long-term data retention are mission-critical.

FAQ

What is the function of the WP#/ACC pin on S29GL128P11FAI020?

The WP#/ACC pin serves two distinct roles: at VIL, it protects the highest or lowest address sector from accidental program/erase; at VHH (12 V), it accelerates programming throughput by enabling unlock bypass mode. Internal pull-up ensures default VIH state when unconnected, preventing unintended protection activation during power-up sequencing.

Does S29GL128P11FAI020 support byte-wide data access?

Yes - when BYTE# is driven low, the device operates in byte mode: DQ0–DQ7 become active data lines, and DQ15/A-1 functions as the LSB address input (A-1). This enables 8-bit microcontroller interfacing without external data bus multiplexing, preserving pin count and simplifying PCB routing.

How does the Secured Silicon Sector differ from standard flash sectors?

The Secured Silicon Sector is a dedicated 128-word (256-byte) region physically isolated from main array. It contains factory- or customer-programmable 8-word electronic serial number and lock bits. Once locked, its contents cannot be erased or rewritten - providing immutable device identity for licensing, calibration, or anti-counterfeiting use cases.

Can S29GL128P11FAI020 operate with VIO = 1.8 V while VCC = 3.3 V?

Yes - the VersatileI/O™ specification explicitly permits VIO = 1.65–VCC. With VCC = 3.3 V, VIO may be set to 1.8 V, allowing direct connection to 1.8 V logic families (e.g., FPGA I/O banks or low-voltage MCUs) without level shifters, while maintaining full 3.3 V core performance and timing compliance.